7609489 has 4 divisors (see below), whose sum is σ = 8057124. Its totient is φ = 7161856.

The previous prime is 7609487. The next prime is 7609493. The reversal of 7609489 is 9849067.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2356225 + 5253264 = 1535^2 + 2292^2 .

It is a cyclic number.

It is not a de Polignac number, because 7609489 - 2¹ = 7609487 is a prime.

It is a super-2 number, since 2×7609489² = 115808645682242, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7609487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223792 + ... + 223825.

It is an arithmetic number, because the mean of its divisors is an integer number (2014281).

Almost surely, 2^7609489 is an apocalyptic number.

It is an amenable number.

7609489 is a deficient number, since it is larger than the sum of its proper divisors (447635).

7609489 is a wasteful number, since it uses less digits than its factorization.

7609489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447634.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 7609489 is about 2758.5302245942. The cubic root of 7609489 is about 196.6913062429.

The spelling of 7609489 in words is "seven million, six hundred nine thousand, four hundred eighty-nine".